EP4088959B1 - Power supply system - Google Patents

Power supply system Download PDF

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Publication number
EP4088959B1
EP4088959B1 EP20927609.6A EP20927609A EP4088959B1 EP 4088959 B1 EP4088959 B1 EP 4088959B1 EP 20927609 A EP20927609 A EP 20927609A EP 4088959 B1 EP4088959 B1 EP 4088959B1
Authority
EP
European Patent Office
Prior art keywords
power
battery packs
supply system
case
cases
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20927609.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4088959A1 (en
EP4088959A4 (en
Inventor
Xiaoliang Lin
Ping Lin
Zhiwen XIE
Anming YANG
Linmao GUO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoitunginnotek Shenzhen Co Ltd
Original Assignee
Hoitunginnotek Shenzhen Co Ltd
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Publication date
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Publication of EP4088959A1 publication Critical patent/EP4088959A1/en
Publication of EP4088959A4 publication Critical patent/EP4088959A4/en
Application granted granted Critical
Publication of EP4088959B1 publication Critical patent/EP4088959B1/en
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Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/02—Dynamic electric resistor braking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6562—Gases with free flow by convection only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0444—Arrangement on a trailer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/40—Working vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/20—Off-Road Vehicles
    • B60Y2200/22—Agricultural vehicles
    • B60Y2200/221—Tractors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the present invention relates to the field of power supply systems, and in particular to a power supply system of an electric tractor.
  • An electric tractor is driven by a motor and used for short-distance horizontal transport of goods in regional yards such as ports, materials are often stored in a trailer, and the tractor is needed to solve the efficient transport of materials in different sections.
  • the tractors are required to work continuously because of the demand of working conditions in wharf operation, frequently start with no load and heavy load, accelerate, suddenly stop, wait for a long time, and have various and complicated working conditions.
  • the traditional electric tractor has insufficient battery installation space, limited battery configuration capacity, and limited working endurance mileage and working time, which cannot meet the requirements of long-term operation of the electric tractor, and affects working efficiency.
  • the overall structure of the tractor is compact, battery installation positions are highly concentrated, a cooling air duct of a battery itself is limited, the heat of the battery cannot be discharged in time when the battery is working, it is prone to rapid temperature rise, and the service life of the the battery is affected. If a large number of batteries are arranged on the body of the tractor, it will also increase the weight of the full vehicle and affects the power performance of the tractor, and meanwhile, potential safety hazards exist.
  • the power supply system is generally arranged on the tractor and used for supplying power to the power system of the electric tractor so as to increase the endurance of the tractor.
  • the above-mentioned power supply system is directly arranged on the frame of the tractor, which is not conducive to its heat dissipation and safety.
  • CN206595313U discloses a utility model that provides a battery carrier for installation on a vehicle frame.
  • the battery carrier includes a battery installation section and a vehicle frame installation portion.
  • the battery installation section is used to install the battery.
  • the vehicle frame installation portion is connected to the battery installation section and is offset from the vehicle frame by at least one side plate.
  • the battery carrier is arranged on the vehicle frame.
  • the battery carrier also includes an oblique pull plate, the two ends of which are respectively arranged on the battery installation section and the vehicle frame installation portion. This further improves the strength of the battery carrier and its ability to bear weight.
  • JP5185788B2 discloses an air introduction device 1 introduces air for cooling unit cells 111 to the battery module 110, which has a plurality of chargeable/dischargeable unit cells 111. It includes a duct body 10 that sucks external air into an intake channel 11a from one intake port 11b. The duct body 10 branches the sucked air into a left branch channel 12a and a right branch channel 13a. The branched air is then introduced from the left face side and right face side, which are opposite to each other, of the battery module 110, respectively.
  • the air introduction device 1 also includes a slide projection 30 arranged in a branching part D of the duct body 10. The slide projection 30 projects so as to face the air flowing through the intake channel 11a. It sets the cross-sectional channel areas S3 and S4 of the air that proceeds to the left branch channel 12a and the right branch channel 13a from the intake channel 11a. This equalizes the temperature distribution inside the battery module.
  • CN209071444U discloses a utility model for a family energy-storage battery case apparatus with water-proof and dust-proof ventilation and heat function.
  • the battery case has several water-proof and dust-proof ventilation and heat components on its left and right sides.
  • a window is provided on the water-proof and dust-proof ventilation and heat component on the right side wall of the battery case.
  • a mounting box is disposed inside the window.
  • the water-proof and dust-proof ventilation and heat component includes a shutter, a continuous filter, a mounting plate, a sealing ring, and a water-proof construction part. The shutter, continuous filter, mounting plate, sealing ring, and water-proof construction part are fixedly connected sequentially.
  • the purpose of the present invention is to provide a power supply system in the process of supplying power to a power system of an electric tractor so as to solve the technical problem that at present, the power supply system is arranged on the tractor and used for supplying power to the power system of the electric tractor, which is not conductive to the heat dissipation of the existing power supply system.
  • the embodiment has the following beneficial effects: the first cases that contain the first power battery packs and the frame of the transport trailer are connected by means of the bracket, and the described power supply system prevents the first cases from being directly connected to the frame, such that a gap is present between each of the first cases and the frame so as to facilitate air flow for heat dissipation; the first case is provided with a first ventilation structure and a second ventilation structure, so that while the transport trailer is moving, wind can enter the first case from the first ventilation structure and be discharged from the second ventilation structure, thus achieving further cooling and heat dissipation for the first power battery packs and avoiding service life being impacted due to the first power battery pack overheating.
  • a power supply system provided by the embodiment of the invention is used for supplying power to the power system of the electric tractor.
  • the power supply system 10 comprises a bracket 100 provided above or below a frame of a transport trailer, first cases 200 arranged on the bracket 100 and first power battery packs suspended in the first cases 200.
  • the first power battery packs are used for supplying power to the power system. That is, after the electric tractor and the transport trailer are connected, the power system is powered by the first power battery packs for the operation of the electric tractor.
  • the transport trailer can be replaced, the first power battery packs on the replaced transport trailer can be charged, and the electric tractor can be connected to another transport trailer for continuous operation, thereby ensuring that a full vehicle can work 24 hours a day.
  • the first cases 200 are connected to the frame through the bracket 100, and the first cases 200 are prevented from being directly connected to the frame, such that a gap is present between the frame and each of the first cases so as to facilitate air flow for heat dissipation of the first case.
  • the number of the first cases 200 is two.
  • the two first cases 200 are respectively located on the two sides of the axis of the frame.
  • the first power battery packs of the same capacity and weight are respectively suspended in the two first cases 200.
  • the transport trailer As the transport trailer has sufficient space for loading the first power battery packs, the transport trailer can be configured with large-capacity battery packs, and the battery capacity of the power system is improved. Further, the endurance mileage and working time of the electric tractor are prolonged. The working efficiency of the electric tractor is improved. At the same time, as the trailer frame has relatively large space, the maintenance difficulty and the maintenance cost can be reduced, and the maintenance efficiency and the overall working efficiency of the electric tractor are improved.
  • the technical scheme of assembling the power supply system 10 on the transport trailer has the beneficial effects that the power supply system 10 can be effectively protected, and is prevented from being impacted and crushed by the outside, and the safety performance of the power supply system 10 is improved.
  • the first cases 200 play a role in wrapping the first power battery packs, and improve the waterproof and dustproof capabilities of the first power battery packs.
  • the first power battery packs are suspended in the first cases 200.
  • a certain gap is left between each of the power battery packs and each of the first cases 200, so that the first power battery packs can be protected when an external object collides with the first case 200.
  • shock-absorbing pads are arranged between the first cases 200 and the bracket 100.
  • each of the first cases 200 has a first side wall (not shown) and a second side wall 210 which are oppositely arranged.
  • the first side wall is provided with a first ventilation structure (not shown).
  • the second side wall 210 is provided with a second ventilation structure 211.
  • the first side wall and the second side wall 210 are arranged in a direction parallel to the axis of the frame, so that while the transport trailer is moving, wind can enter the first case 200 from the first ventilation structure and be discharged from the second ventilation structure 211, thus achieving cooling and heat dissipation for the first power battery packs.
  • the axis direction of the frame is parallel to the direction indicated by an arrow x in FIG. 1 .
  • the bracket 100 comprises an upper bracket body 110 and two lower bracket bodies 120.
  • Each of the lower bracket bodies 120 is connected to the lower end of each of the first cases 200 in one-to-one correspondence.
  • the upper bracket body 110 and the lower bracket bodies 120 are parallel to each other and connected by tripods 130.
  • the lower bracket bodies 120 are connected by horizontal frames 140.
  • the bracket 100 is connected to the frame through bolts.
  • the connection position between the bracket 100 and the frame can be located at the front, middle or rear of the frame.
  • the upper bracket body 110 is connected to the frame by bolts.
  • a reinforced rib plate 300 may also be used for furthering reinforcing the upper bracket body 110 and the frame.
  • each of the first power battery packs can form a good heat dissipation air duct, which ensures that the temperature of each of the first power battery packs is controlled in the optimal working range when the power supply system 10 is working.
  • the service life of the power supply system 10 is prolonged.
  • the first ventilation structure and the second ventilation structure 211 are fence holes or louver holes 211.
  • the first ventilation structure and the second ventilation structure 211 are the louver holes 211.
  • the louver holes 211 are used to prevent relatively large sundries from entering the first cases 200 to damage the first power battery packs under the premise of satisfying ventilation.
  • Each of the first cases 200 is further provided with handles 220 and lifting lugs 230 for moving the first case 200.
  • the power supply system 10 further comprises a second case 400 and a third case 500 which are arranged on the bracket 100.
  • the high-voltage power distribution device is arranged in the second case 400.
  • the first power battery packs are connected to the high-voltage power distribution device through high-voltage wiring harnesses and low-voltage control wiring harnesses.
  • the first power battery packs supply power to the power system through the high-voltage power distribution device.
  • the high-voltage power distribution device is used for acquiring the battery status information of the first power battery packs, and controls the first power battery packs to output power.
  • the charging device is arranged in the third case 500 and is used for charging the first power battery packs.
  • the second case 400 and the third case 500 are arranged, so that the high-voltage power distribution device and the charging device are independent.
  • the stress of the entire power supply system 10 is avoided from being too concentrated, at the same time, the arrangement of the wiring harnesses is facilitated, and the maintenance convenience is improved when the power supply system 10 fails.
  • the second case 400 and the third case 500 are arranged in one-to-one correspondence with the first cases 200 in an axial direction parallel to the frame.
  • the second case 400 and the third case 500 are connected to the extension portions 121 of the lower bracket bodies 120 in one-to-one correspondence.
  • Both the second case 400 and the third case 500 are opposite to the corresponding second side walls 210 at intervals so as to facilitate air flow for heat dissipation.
  • the high-voltage power distribution device After the transport trailer is connected to the electric tractor, the high-voltage power distribution device is used for connection with the power system.
  • the first power battery packs supply power to the power system through the high-voltage power distribution device.
  • the high-voltage power distribution device receives the command sent by the full vehicle, responds, and controls the first power battery packs to output corresponding energy.
  • the power supply system 10 further comprises an energy recovery device.
  • the energy recovery device is used for converting energy generated when the electric tractor 20 brakes into electric energy and for recovering the electric energy to the first power battery packs through the high-voltage power distribution device.
  • the power supply system 10 supplies power to the power system 21 according to the set control strategy. Therefore, the endurance mileage of the electric tractor can be prolonged, the performance and safety of the electric tractor are not affected, and meanwhile, the overall working efficiency of the electric tractor can be improved.
  • the charging device is provided with dual-gun charging sockets.
  • the dual-gun charging sockets are used for connection with charging pile plugs to charge the first power battery packs.
  • the dual-gun charging sockets face the outside of the transport trailer, which is convenient for external charging piles to charge the first power battery packs.
  • the charging device transfers electric energy externally input to the first power battery packs for storage.
  • the dual-gun charging sockets can satisfy the requirement that two charging piles charge the first power battery packs at the same time, and thus, the purpose of fast charging is achieved. Any one of the dual-gun charging sockets can also be selected for connection according to requirements for charging.
  • the frame is also provided with protective fences 600 used for protecting the power supply system 10.
  • the protective fences 600 are arranged on both sides of the trailer bracket to form external protection for the entire power supply system 10.
  • the entire protective fences 600 form a wrapping state for the first cases 200, the second case 400 and the third case 500.
  • the protective fences 600 are connected to the transport trailer without increasing the load bearing of the trailer bracket.
  • a certain gap is left respectively between the protective fences 600 and the first cases 200, between the protective fence and the second case 400 and between the protective fence and the third case 500 to protect the entire power supply system 10.
  • the power supply system 10 also comprises a second power battery pack which is located on the electric trailer and used for supplying power to the power system.
  • the first power battery packs on the transport trailer serve as the main power sources, and can directly drive the power system to work.
  • the power system can also be powered by the second power battery pack configured on the tractor itself.
  • the power supply system 10 comprises the following working state:
  • the power supply system provided in the embodiment of the present application has the advantages that the protection for the first power battery packs is improved, and the safety of the first power battery packs is greatly improved.
  • the space is relatively large, more power is supplied, and the endurance mileage and working time are prolonged.
  • the inspection and maintenance of the batteries are also more convenient while the space is enlarged.
  • the first power battery packs Due to the change of the first power battery pack arrangement mode, the first power battery packs have sufficient space for the arrangement of the air ducts, so that the temperature rise of the first power battery packs is relatively slow, the maximum temperature and average temperature during operation are reduced, and the failure rate is reduced. At the same time, the capacity fading of the first power battery pack becomes slow, and the service life of the first power battery pack is prolonged. Further, the arrangement space of the high-voltage wiring harnesses is enlarged, the high-voltage wiring harnesses can be separated from the low-voltage control wiring harnesses by a sufficient distance so as to prevent the electric tractor from being incapable of working normally due to the interference caused by communication, and the stability of the electric tractor is improved.
  • the power supply system 10 adopts lithium battery packs as the first power battery packs for power supply, the electric driving mode and braking energy recovery mode of the wharf electric tractor with pure lithium battery output are realized, the energy loss is reduced, and zero oil consumption and pollution emission of the electric tractor are completely realized.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP20927609.6A 2020-03-24 2020-09-30 Power supply system Active EP4088959B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020393380.0U CN212073690U (zh) 2020-03-24 2020-03-24 供电系统
PCT/CN2020/119570 WO2021189806A1 (zh) 2020-03-24 2020-09-30 供电系统

Publications (3)

Publication Number Publication Date
EP4088959A1 EP4088959A1 (en) 2022-11-16
EP4088959A4 EP4088959A4 (en) 2023-08-09
EP4088959B1 true EP4088959B1 (en) 2024-02-21

Family

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EP20927609.6A Active EP4088959B1 (en) 2020-03-24 2020-09-30 Power supply system

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US (1) US12087925B2 (pl)
EP (1) EP4088959B1 (pl)
CN (1) CN212073690U (pl)
FI (1) FI4088959T3 (pl)
PL (1) PL4088959T3 (pl)
WO (1) WO2021189806A1 (pl)

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Publication number Priority date Publication date Assignee Title
CN114312360B (zh) * 2022-01-04 2024-08-20 星恒电源股份有限公司 一种电池的并联拓扑及其充电系统
NL2034457B1 (en) 2023-03-29 2024-10-08 Daf Trucks Nv A road vehicle
NL2034455B1 (en) 2023-03-29 2024-10-04 Daf Trucks Nv A road vehicle
NL2034540B1 (en) 2023-04-11 2024-10-15 Daf Trucks Nv A road vehicle
CN116788078A (zh) * 2023-08-05 2023-09-22 石鑫 一种新能源汽车充电桩

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Publication number Priority date Publication date Assignee Title
US5390754A (en) * 1992-01-16 1995-02-21 Honda Giken Kogyo Kabushiki Kaisha Battery box for an electric vehicle
JPH0776228A (ja) * 1993-09-07 1995-03-20 Nippon Home Keizai Kenkyusho:Kk 電気自動車用電力供給装置
JP5185788B2 (ja) * 2008-11-26 2013-04-17 本田技研工業株式会社 空気導入装置
WO2012154990A2 (en) * 2011-05-10 2012-11-15 Johnsen Stephen G Mobile variable power system and method
US9566954B2 (en) * 2014-03-10 2017-02-14 Max Moskowitz Vehicular accessory
CN107264254B (zh) * 2016-04-08 2021-06-18 比亚迪股份有限公司 货车
CN206595313U (zh) * 2017-06-09 2017-10-27 深圳市海梁科技有限公司 电池架及电池架组
CN107640215A (zh) * 2017-10-27 2018-01-30 中国重汽集团济南动力有限公司 一种6×4纯电动牵引车底盘结构
CN207449608U (zh) * 2017-11-20 2018-06-05 中国第一汽车股份有限公司 一种纯电动物流车底盘
CN209071444U (zh) * 2018-12-12 2019-07-05 远东福斯特新能源有限公司 一种具有防水防尘通风散热功能的户用储能电池箱装置
EP4041589A4 (en) * 2019-11-26 2023-11-08 Hexagon Purus North America Holdings Inc. Electric vehicle power distribution and drive control modules

Also Published As

Publication number Publication date
CN212073690U (zh) 2020-12-04
WO2021189806A1 (zh) 2021-09-30
FI4088959T3 (fi) 2024-05-20
PL4088959T3 (pl) 2024-06-24
EP4088959A1 (en) 2022-11-16
US20220393261A1 (en) 2022-12-08
US12087925B2 (en) 2024-09-10
EP4088959A4 (en) 2023-08-09

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